Add support for GCM cipher suites from RFC 7714.

talk/session/media/channelmanager.cc

 /*
  * libjingle
  * Copyright 2004 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 88 matching lines @@
   media_engine_.reset(me);
   data_media_engine_.reset(dme);
   capture_manager_.reset(cm);
   initialized_ = false;
   main_thread_ = rtc::Thread::Current();
   worker_thread_ = worker_thread;
   audio_output_volume_ = kNotSetOutputVolume;
   local_renderer_ = NULL;
   capturing_ = false;
   enable_rtx_ = false;
+  enable_gcm_crypto_suites_ = false;
 
   capture_manager_->SignalCapturerStateChange.connect(
       this, &ChannelManager::OnVideoCaptureStateChange);
 }
 
 ChannelManager::~ChannelManager() {
   if (initialized_) {
     Terminate();
     // If srtp is initialized (done by the Channel) then we must call
     // srtp_shutdown to free all crypto kernel lists. But we need to make sure
@@ skipping 16 matching lines @@
   // app.
   if (!initialized_) {
     enable_rtx_ = enable;
     return true;
   } else {
     LOG(LS_WARNING) << "Cannot toggle rtx after initialization!";
     return false;
   }
 }
 
+bool ChannelManager::SetEnableGcmCryptoSuites(bool enable) {
+  enable_gcm_crypto_suites_ = enable;
+  return true;
+}
+
 void ChannelManager::GetSupportedAudioCodecs(
     std::vector<AudioCodec>* codecs) const {
   codecs->clear();
 
   for (std::vector<AudioCodec>::const_iterator it =
            media_engine_->audio_codecs().begin();
       it != media_engine_->audio_codecs().end(); ++it) {
     codecs->push_back(*it);
   }
 }
@@ skipping 113 matching lines @@
   ASSERT(worker_thread_ == rtc::Thread::Current());
   ASSERT(nullptr != media_controller);
   VoiceMediaChannel* media_channel =
       media_engine_->CreateChannel(media_controller->call_w(), options);
   if (!media_channel)
     return nullptr;
 
   VoiceChannel* voice_channel =
       new VoiceChannel(worker_thread_, media_engine_.get(), media_channel,
                        transport_controller, content_name, rtcp);
+  voice_channel->SetEnableGcmCryptoSuites(enable_gcm_crypto_suites_);
   if (!voice_channel->Init()) {
     delete voice_channel;
     return nullptr;
   }
   voice_channels_.push_back(voice_channel);
   return voice_channel;
 }
 
 void ChannelManager::DestroyVoiceChannel(VoiceChannel* voice_channel) {
   TRACE_EVENT0("webrtc", "ChannelManager::DestroyVoiceChannel");
@@ skipping 38 matching lines @@
   ASSERT(worker_thread_ == rtc::Thread::Current());
   ASSERT(nullptr != media_controller);
   VideoMediaChannel* media_channel =
       media_engine_->CreateVideoChannel(media_controller->call_w(), options);
   if (media_channel == NULL) {
     return NULL;
   }
 
   VideoChannel* video_channel = new VideoChannel(
       worker_thread_, media_channel, transport_controller, content_name, rtcp);
+  video_channel->SetEnableGcmCryptoSuites(enable_gcm_crypto_suites_);
   if (!video_channel->Init()) {
     delete video_channel;
     return NULL;
   }
   video_channels_.push_back(video_channel);
   return video_channel;
 }
 
 void ChannelManager::DestroyVideoChannel(VideoChannel* video_channel) {
   TRACE_EVENT0("webrtc", "ChannelManager::DestroyVideoChannel");
@@ skipping 38 matching lines @@
   DataMediaChannel* media_channel = data_media_engine_->CreateChannel(
       data_channel_type);
   if (!media_channel) {
     LOG(LS_WARNING) << "Failed to create data channel of type "
                     << data_channel_type;
     return NULL;
   }
 
   DataChannel* data_channel = new DataChannel(
       worker_thread_, media_channel, transport_controller, content_name, rtcp);
+  data_channel->SetEnableGcmCryptoSuites(enable_gcm_crypto_suites_);
   if (!data_channel->Init()) {
     LOG(LS_WARNING) << "Failed to init data channel.";
     delete data_channel;
     return NULL;
   }
   data_channels_.push_back(data_channel);
   return data_channel;
 }
 
 void ChannelManager::DestroyDataChannel(DataChannel* data_channel) {
@@ skipping 160 matching lines @@
   return worker_thread_->Invoke<bool>(
       Bind(&MediaEngineInterface::StartRtcEventLog, media_engine_.get(), file));
 }
 
 void ChannelManager::StopRtcEventLog() {
   worker_thread_->Invoke<void>(
       Bind(&MediaEngineInterface::StopRtcEventLog, media_engine_.get()));
 }
 
 }  // namespace cricket